Differu: Gwahaniaeth rhwng fersiynau
Cynnwys wedi'i ddileu Cynnwys wedi'i ychwanegu
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Llinell 63:
* [http://www.numberempire.com/derivatives.php Cyfrifiannell Differu ar-lein].
* [http://www.mendelu.cz/user/marik/maw/index.php?lang=en&form=derivace "Mathematical Assistant on Web"] Cyfrifiannell Differu ar-lein, gan gynnwys eglurhad o'r ateb.
* [http://web.archive.org/20030720135656/homepage.mac.com/stray/ib/maths/deriv_fp.pdf ''Proving Derivatives from First Principles''].
* [http://www.bluffton.edu/~nesterd/java/derivs.html ''Practice finding derivatives of randomly generated functions'']
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